Phase dependence of intense-field ionization

被引:84
作者
Schumacher, DW [1 ]
Bucksbaum, PH [1 ]
机构
[1] UNIV MICHIGAN, DEPT PHYS, ANN ARBOR, MI 48109 USA
来源
PHYSICAL REVIEW A | 1996年 / 54卷 / 05期
关键词
D O I
10.1103/PhysRevA.54.4271
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Two-color radiation has been used to investigate the physical mechanism of intense-held ionization. One color was the second harmonic of the other, and there was a well-defined phase between them which was calibrated absolutely. We measured the photoelectron yield from above-threshold ionization of krypton and xenon as this phase was varied. We show that the phase-dependent signature of tunnel ionization is present even though the electron spectra are clearly multiphoton in character. We also use the two-color phase as a probe to show evidence for core scattering during the ionization process.
引用
收藏
页码:4271 / 4278
页数:8
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